diff --git a/.github/workflows/build-book-pullrequest.yaml b/.github/workflows/build-book-pullrequest.yaml
index 72c38224..b80f2583 100644
--- a/.github/workflows/build-book-pullrequest.yaml
+++ b/.github/workflows/build-book-pullrequest.yaml
@@ -113,7 +113,7 @@ jobs:
           fi
           zip -r book.zip ${{ inputs.path_to_notebooks }}/_build/html
       - name: Upload zipped book artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: book-zip-${{github.event.number}}
           path: ./book.zip
diff --git a/.github/workflows/build-book.yaml b/.github/workflows/build-book.yaml
index 65d97df0..f5c1e3e9 100644
--- a/.github/workflows/build-book.yaml
+++ b/.github/workflows/build-book.yaml
@@ -111,7 +111,7 @@ jobs:
           fi
           zip -r book.zip ${{ inputs.path_to_notebooks }}/_build/html
       - name: Upload zipped book artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: book-zip-${{github.event.number}}
           path: ./book.zip